Results 21 to 30 of about 3,095,070 (339)

On Extremal Hypergraphs for Hamiltonian Cycles [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2011
We study sufficient conditions for Hamiltonian cycles in hypergraphs, and obtain both Tur n- and Dirac-type results. While the Tur n-type result gives an exact threshold for the appearance of a Hamiltonian cycle in a hypergraph depending only on the extremal number of a certain path, the Dirac-type result yields a sufficient condition relying solely ...
Wilma Weps, Roman Glebov, Yury Person
openaire   +4 more sources

Hamiltonian Cycle Problem in Strong k-Quasi-Transitive Digraphs With Large Diameter

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let k be an integer with k ≥ 2. A digraph is k-quasi-transitive, if for any path x0x1... xk of length k, x0 and xk are adjacent. Let D be a strong k-quasi-transitive digraph with even k ≥ 4 and diameter at least k +2.
Wang Ruixia
doaj   +1 more source

Distribution System State Estimation Using the Hamiltonian Cycle Theory

open access: greenIEEE Transactions on Smart Grid, 2015
Jônatas Boás Leite   +1 more
openalex   +3 more sources

Hidden Hamiltonian Cycle Recovery via Linear Programming [PDF]

open access: yesOperational Research, 2018
We introduce the problem of hidden Hamiltonian cycle recovery, where there is an unknown Hamiltonian cycle in an $n$-vertex complete graph that needs to be inferred from noisy edge measurements.
V. Bagaria   +4 more
semanticscholar   +1 more source

Looking for the Hardest Hamiltonian Cycle Problem Instances

open access: yesInternational Joint Conference on Computational Intelligence, 2020
: We use two evolutionary algorithms to make hard instances of the Hamiltonian cycle problem. Hardness, or fitness, is defined as the number of recursions required by Vandegriend-Culberson, the best known exact backtracking algorithm for the problem.
J. Sleegers, D. V. D. Berg
semanticscholar   +1 more source

An Optimal XP Algorithm for Hamiltonian Cycle on Graphs of Bounded Clique-Width [PDF]

open access: yesAlgorithmica, 2017
In this paper, we prove that, given a clique-width k-expression of an n-vertex graph, Hamiltonian Cycle can be solved in time nO(k)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb ...
Benjamin Bergougnoux   +2 more
semanticscholar   +1 more source

A note on equitable Hamiltonian cycles

open access: yesDiscrete Applied Mathematics, 2021
Given a complete graph with an even number of vertices, and with each edge colored with one of two colors (say red or blue), an equitable Hamiltonian cycle is a Hamiltonian cycle that can be decomposed into two perfect matchings such that both perfect matchings have the same number of red edges.
Tim Ophelders   +3 more
openaire   +2 more sources

Extending Complex Conjugate Control to Nonlinear Wave Energy Converters

open access: yesJournal of Marine Science and Engineering, 2020
This paper extends the concept of Complex Conjugate Control (CCC) of linear wave energy converters (WECs) to nonlinear WECs by designing optimal limit cycles with Hamiltonian Surface Shaping and Power Flow Control (HSSPFC).
David G. Wilson   +4 more
doaj   +1 more source

Existence of Dλ-cycles and Dλ-paths [PDF]

open access: yes, 1983
A cycle of C of a graph G is called a Dλ-cycle if every component of G − V(C) has order less than λ. A Dλ-path is defined analogously. In particular, a D1-cycle is a hamiltonian cycle and a D1-path is a hamiltonian path.
Veldman, H.J.
core   +4 more sources

Enumerating Hamiltonian Cycles [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2014
A dynamic programming method for enumerating hamiltonian cycles in arbitrary graphs is presented. The method is applied to grid graphs, king's graphs, triangular grids, and three-dimensional grid graphs, and results are obtained for larger cases than previously published.
openaire   +4 more sources

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